Donostia / San Sebastian
Reaching Donostia / San Sebastian from London emits 27.2 kg CO₂e return by rail (11h 36m each way) against 232 kg by air — 9× the carbon. It averages 21.0 °C in August and 9.2 °C in January.
When to go: Donostia / San Sebastian is warmest in August (21.0 °C), sunniest in May (10.3 h a day), driest in July; coldest in January (9.2 °C). Month by month
Getting there
| From | Distance | By rail | Rail time | By air | Air time |
|---|---|---|---|---|---|
| Amsterdam | 1,129 km | 33.3 kg | 12h | 284 kg | 5h |
| Barcelona | 401 km | 11.8 kg | 6h 24m | 101 kg | 4h |
| Berlin | 1,532 km | 45.2 kg | 17h 18m | 385 kg | 5h 30m |
| Birmingham | 1,020 km | 40.3 kg | 14h 18m | 256 kg | 4h 54m |
| Bristol | 907 km | 40.9 kg | 14h 36m | 228 kg | 4h 42m |
| Brussels | 964 km | 28.5 kg | 10h 6m | 243 kg | 4h 48m |
| Cardiff | 913 km | 44.2 kg | 14h 54m | 230 kg | 4h 42m |
| Copenhagen | 1,723 km | 50.8 kg | 22h 48m | 433 kg | 5h 48m |
| Dublin | 1,158 km | — | — | 291 kg | 5h |
| Edinburgh | 1,408 km | 70.1 kg | 17h 18m | 354 kg | 5h 24m |
| Frankfurt | 1,108 km | 32.7 kg | 12h 18m | 279 kg | 5h |
| Glasgow | 1,405 km | 71.8 kg | 17h 30m | 353 kg | 5h 24m |
| Leeds | 1,166 km | 49.1 kg | 15h 12m | 293 kg | 5h 6m |
| Lisbon | 788 km | 23.3 kg | 13h 24m | 198 kg | 4h 36m |
| Liverpool | 1,125 km | 50.2 kg | 15h 12m | 283 kg | 5h |
| London | 922 km | 27.2 kg | 11h 36m | 232 kg | 4h 42m |
| Madrid | 352 km | 10.4 kg | 6h 18m | 88.6 kg | 4h |
| Manchester | 1,131 km | 48.2 kg | 15h 6m | 284 kg | 5h |
| Milan | 918 km | 27.1 kg | 15h 6m | 231 kg | 4h 42m |
| Munich | 1,178 km | 34.8 kg | 14h 24m | 296 kg | 5h 6m |
| Newcastle | 1,297 km | 59.2 kg | 15h 48m | 326 kg | 5h 12m |
| Nottingham | 1,074 km | 41.3 kg | 14h 42m | 270 kg | 4h 54m |
| Oslo | 2,036 km | 60.1 kg | 31h 24m | 512 kg | 6h 12m |
| Paris | 700 km | 20.7 kg | 7h 18m | 176 kg | 4h 24m |
| Prague | 1,455 km | 42.9 kg | 21h 12m | 366 kg | 5h 24m |
| Rome | 1,195 km | 35.3 kg | 18h 48m | 301 kg | 5h 6m |
| Sheffield | 1,120 km | 45.5 kg | 15h | 282 kg | 5h |
| Southampton | 845 km | 36.2 kg | 14h 18m | 213 kg | 4h 36m |
| Stockholm | 2,242 km | 66.2 kg | 29h 12m | 564 kg | 6h 30m |
| Vienna | 1,519 km | 44.8 kg | 19h 30m | 382 kg | 5h 30m |
| Warsaw | 1,971 km | 58.2 kg | 24h 48m | 496 kg | 6h 6m |
| Zurich | 937 km | 27.6 kg | 12h 42m | 236 kg | 4h 42m |
The year in Donostia / San Sebastian
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp °C | 9.2 | 9.9 | 12.6 | 13.2 | 15.0 | 19.0 | 20.4 | 21.0 | 19.3 | 18.1 | 13.9 | 10.5 |
| Sun h/day | 5.1 | 6.4 | 8.0 | 8.9 | 10.3 | 9.9 | 10.3 | 10.1 | 9.5 | 7.4 | 6.1 | 5.4 |
| Rain mm/day | 5.9 | 5.0 | 4.1 | 4.6 | 4.5 | 3.9 | 1.9 | 5.1 | 5.0 | 5.8 | 6.3 | 7.1 |
| Sea °C | 14.0 | 13.2 | 13.3 | 14.3 | 16.2 | 20.3 | 22.2 | 23.3 | 22.0 | 20.0 | 17.1 | 14.8 |
When to go
Donostia / San Sebastian is warmest in August at 21.0 °C but brightest in May, averaging 10.3 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 9.2 °C.
On these lists
- Warmest from London in January · low-carbon pick
- Warmest from London in March · low-carbon pick
- Warmest from London in October · low-carbon pick
- Warmest from London in November · low-carbon pick
- Warmest from London in December · low-carbon pick
Three months worth booking
The same year of measurements, decided rather than tabulated. Each opens the map below on dates in that month.
Staying there
A hotel room in Spain emits about 7 kg CO₂e per night under UK Government 2026 factors — a country average per occupied room, not this or any particular hotel. 7 nights in one room adds roughly 49 kg — about 4.7× the carbon of one person getting there by rail from Madrid. Two sharing the room halve that share each; the journey does not halve.
How busy it gets
Gipuzkoa records 6.2 overnight stays per resident a year (4,525,954 nights in 2024). Comparatively quiet by European standards.
Eurostat, nights spent at tourist accommodation by NUTS 3 region, against resident population. Shown for context only — it plays no part in which destinations appear or in what order. Eurostat does not cover the United Kingdom after 2016, nor North Africa or the Levant at all, so this figure is absent for roughly a third of the destinations here.
Where to stay in Donostia / San Sebastian
Places to stay in Donostia / San Sebastian, Spain, on a live map. Prices and availability come from Stay22 and its booking partners.
Search places to stay in Donostia / San Sebastian →Opens the booking search in a new tab. Same partners as the map below.
Affiliate disclosure. A booking made through this map may earn 0xCarbon a commission, at no extra cost to you. It changes nothing above it: the emissions figures come from UK Government conversion factors and are computed before anyone is paid anything.See the method.
Distances are great-circle. Rail assumes international rail at 0.01135 kg CO₂e per passenger-km with a 1.3× track detour allowance; flights use 0.12576 kg per passenger-km including radiative forcing. Journey times are modelled, not timetabled. Full method.